This post really brought this video to mind:https://youtu.be/4DqoQq1zME8“Canadian”. 😂
Unfortunatly the front cover of the canadian version on the site is also custom. The US retail versions looked a little different. (custom on the left, retail on the right)My guess is, they took the artwork from the manual, which looks similar:-> https://www.ebay.com/itm/NICE-Operation-C-Nintendo-Game-Boy-1991-CIB-COMPLETE-Authentic-Inserts-GB/184206429843?epid=56237035&hash=item2ae38f0e93:g:~LoAAOSwdHteaOF9
Arseen found the pic online it most likely came from.